Sheriff's homicide detectives search Monday for the suspect or suspects who shot and killed a man outside a Ramona home.

Gunshots were reported at 8:34 p.m. Sunday around Wood Rock Lane and Mussey Grade Road, sheriff's Lt. Matthew Glisson said. When deputies arrived in the area, they found a man with a traumatic injury on the ground outside the home at 15921 Wood Rock Lane.

Paramedics from Cal Fire treated the victim but were unable to save his life, sheriff's homicide Lt. Michael Blevins said. The victim, whose identity was being withheld, died at the scene outside the single-story home, which sits at the end of a narrow dirt road.

The unidentified man was only able to say, “I’ve been shot,” before he lost consciousness and first responders were unable to revive him, Blevins said. Multiple people called 911 after hearing gunshots and screaming.

A sheriff's SWAT team helped deputies set up a perimeter “in an attempt to contain any possible suspect” or suspects, Blevins said. But a search of the area turned up no suspects. The SWAT team did not clear the scene until 4 a.m. Monday, Blevins said.

Sheriff’s helicopters warned residents to stay inside their homes.

Neighbor Matt Juric, who lives in the 15900 block of Mussey Grade Road, said detectives woke him at 2:39 a.m. when they knocked at his door and asked if he had seen or heard anything. He said he did not.

Juric said he knows most of the people who live on the street where the shooting occurred.

“It’s pretty quiet and there haven’t been any problems in the past,” he said.

Standing outside in front of his home Monday morning, Juric was asking questions and trying to get information and said he is troubled to learn of a murder in his typically quiet neighborhood.

“It’s too close to home,” he said. “It’ll probably make me feel a lot worse when I find out who it (victim) is.”

Homicide detectives are seeking potential witnesses and asked anyone with information about the slaying to call the sheriff's homicide detail during work hours at 858-974-2321 or after hours at 858-565-5200. Tipsters can also remain anonymous by calling San Diego Crime Stoppers at 888-580-8477or contacting the agency online at sdcrimestoppers.org.